Source: poppler Upstream has added support for using gpg s/mime (and thus nicer user interfaces like 'kleopatra' for managing certificates) for signing pdf documents.
Please add a build-depends on libgpgme-dev and everything should just work out. If you want to be precise, libgpgme-dev >= 1.19.0 is what upstream cmake requires. /Sune -- I didn’t stop pretending when I became an adult, it’s just that when I was a kid I was pretending that I fit into the rules and structures of this world. And now that I’m an adult, I pretend that those rules and structures exist. - zefrank